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Berita Sedimentologi

FOSI
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Published by Forum Sedimentologiwan Indonesia

ISSN : 08539413 EISSN : 2807274X DOI : https://doi.org/10.51835/bsed

Core Subject : Science,

Earth & Planetary Sciences

BERITA SEDIMENTOLOGI aims to disseminate knowledge on the field of sedimentary geology to its readers. The journal welcomes contributions in the form of original research articles, review articles, short communications and discussions and replies. Occasionally, Berita Sedimentologi also includes field trip reports and book reviews, which are published only after going through peer-review processes. The main geographical areas of interest are Indonesia and SE Asia, however contribution from the rest of the world is also welcome. Berita Sedimentologi covers broad topics within sedimentary geology, particularly on depositional processes and their records in the rocks, petrology, sedimentology and stratigraphy of both siliciclastic and carbonate rocks; sequence stratigraphy, paleontology, biostratigraphy and sedimentary geochemistry. The journal also accepts articles on interdisciplinary research in sedimentary basin analysis, including large-scale basin geodynamics processes, mechanism of sedimentary basin formation, earth surface processes, sediment routing systems, petroleum geoscience and applied sedimentary geology analysis for mining and engineering geology.

Arjuna Subject : Ilmu Bumi dan Planet (semua kategori) - Geologi

Articles 282 Documents

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Sedimentology of Coal Conglomerate Deposits within Channel Facies in Samarinda Region, East Kalimantan, Indonesia Herman Darman; Yahdi Zaim
Berita Sedimentologi Vol 5, No 1 (1997)
Publisher : Ikatan Ahli Geologi Indonesia

Conglomerate beds with generally rounded to subrounded coal fragments are common in channel deposit facies in Samarinda Region (East Kalimantan), beds occur as interbeds within Balikpapan Formation. The coal fragments are possible transported and sedimented wood cuts or transported coal fragments from an older coal seam. This study compares the bed thickness with the diameter of the coal fragments and the other fragments. The cross plot of the bed thickness and grain size gives a better understanding of the sedimentation processes. Anomaly diameter of the coal fragments indicated wood fragments origin coals, also showed by the texture, the gradual changes of colour and the shape of the fragments. Small fragments (less than 1 cm) is hard to distinguish due to unclear texture and shape. There are two possibilities of the small coal fragments origins, coal clastics or small high density wood cuts. Coal fragments characteristics in conglomerate beds and typical Gp and Sp facies characteristics show that the coal fragment were deposited in a point bar controlled by a flooding process and the Gms facies was deposited in proximal channels.

Outcrops Conservation of Tanjung Baru or Lower Talang Akar Formation, Baturaja City of Palembang Area - South Sumatra Basin: How important? Premonowati Premonowati
Berita Sedimentologi Vol 20, No 1 (2011)
Publisher : Ikatan Ahli Geologi Indonesia

Tanjung Baru Formation only outcropped in one location so called Tanjung Baru, Palembang, South Sumatra. In total this formation is expossed in an area of about one acre. The outcrop is a quartz sandstone quarry, which has become smaller in size rapidly because of intensive mining activities by the local community. The formation is also called Gritsand Member (GRM) of the Lower Talang Akar Formation/Lemat Formation/Lahat Formation. A different name from Talang Akar Formation was given to this formation because it has an important role in the tectonostratigraphy context. Tanjung Baru Formations has different genetic, location and section type from that of Talang Akar Formation. The formation consists of conglomeratic sandstone of channel deposit. The sections indicate five times of channeling with each channel has a geometry of 20 m long and 9 m thick. This lag sedimentary deposit consists of fine- to very coarse-grained sandstones. The erosional base contact has polymictic conglomeratic sandstone outcrop with gradded bedding and planar crossbedding that indicate high energy deposition like channelized environment in shallow marine. The fining upward succession was a result of lateral accretion of channel shifting or a fluvial channel system depositional environment. The very fine sand of channel plug was deposited in a very low energy environment before the channel was abandoned. Some parts have shaly and coal streaks with mafic and feldspatic minerals. This formation has an indication to be an excellent reservoir.The geology of Tanjung Baru Formation is an important object to study because it is the one and only outcrop that needs to be conserved. The objective is to save this outcrop from extinction. A socialization to the Governor of South Sumatra Province and Head of Palembang Regent needs to be done. The government has to create a regulation to stop the mining activities, build a boundary for the outcrops with plantation and put an information board to explain that it’s a conservation area. Let all geology students and also people of all generations to have a possibility to learn Tanjung Baru Formation from this outcrop as a geopark.

Cover, Table of Contents, and Introduction to Volume Berita Sedimentologi
Berita Sedimentologi Vol 30, No 1 (2014)
Publisher : Ikatan Ahli Geologi Indonesia

Cover, Table of Contents, and Introduction to Volume

Making the Most of Biostratigraphic Data; Examples from Early Cretaceous to Late Jurassic Shallow Marine Sand Units in Papua New Guinea and Australasia Mike Bidgood; Monika Dlubak; Mike Simmons
Berita Sedimentologi Vol 33, No 1 (2015)
Publisher : Ikatan Ahli Geologi Indonesia

A fundamental task in the exploration workflow is the mapping of reservoir sand units within a broader paleogeography. Such maps help, for example, to predict reservoir extent and link sands back to likely sediments sources thereby helping to improve reservoir quality predictions. If these sand units are multiple bodies within a relatively narrow time-stratigraphic interval, mapping of individual sands can be difficult if we rely on simple lithostratigraphic differentiation, or chronostratigraphic terminology (“ages”) for correlation.An example of this is shown from the Early Cretaceous to Late Jurassic shallow marine sands of southeast Papua New Guinea and Australasia. Previously correlated only on a broad timescale and often with overlapping age-range for individual lithostratigraphic units, it can be difficult to determine the precise stratigraphic position of each of these sands (e.g. the important Toro Sandstone reservoir) which in turn can affect interpretations regarding their exploration and production characteristics.The evaluation of large, public-domain, biostratigraphic datasets has allowed for the construction of a detailed “synthesis biozonation” for the area which permits more reliable identification and stratigraphic placement of individual sand units and which further allows for improved correlation at local and regional scale and improved mapping.

An Overview of Tectonic and Sedimentation Inter-relationship F. Hasan Sidi; Herman Darman
Berita Sedimentologi Vol 9, No 1 (1998)
Publisher : Ikatan Ahli Geologi Indonesia

For more than a century geoscientists had related tectonic to sedimentation by associating geosynclines with thick accumulations of sedimentation. Until the middle of 20th century, sedimentary basins were still rationalized and classified in terms of geosynclinal theory, including the publication of "Geology of Indonesia" in 1949 by R.W. van Bemmelen. The advent of plate tectonic theory led to a revival interest of tectonic and sedimentation since the development of this theory had provided fresh perspectives to build and constraint models of deep lithospheric behavior. Most of the sedimentary basins can now be explained in terms of plate-margin processes and consequently make the structure and stratigraphy have become more understandable. The plate tectonic theory demonstrated that one of the most important controls on sedimentation and deformation is the position of a sedimentary basin relative to either a plate or a continent-ocean boundary.

Soft Sediment Deformation Structures in the Andaman Flysch Group, Andaman Basin: Evidence for Palaeogene Seismic Activity in the Island Arc Sandip K. Roy; Santanu Banerjee
Berita Sedimentologi Vol 35, No 1 (2016)
Publisher : Ikatan Ahli Geologi Indonesia

The Andaman Flysch Group is represented by four sedimentary facies: thick sandstone, thin sandstone, heterolith and shale. They were observed in seven outcrops in the Andaman Islands. Soft sediment deformation features like slumps structure/folds, convolute bedding or lamination, load and flame structures, pseudo nodules/ball and pillow structures and dish and pillar structures have been observed with regularity in these facies and independent of facies specifics. The slumps structure/folds, convolute bedding or lamination encased by undeformed beds, sand volcanoes and some load casts/pseudo-nodules shows evidence of being triggered by earthquakes in this convergent margin basin.

Book Review: Sedimentation in the Modern and Miocene Mahakam Delta Dyah Tribuanawati
Berita Sedimentologi Vol 12, No 1 (1999)
Publisher : Ikatan Ahli Geologi Indonesia

Sedimentation in the Modern and Miocene Mahakam DeltaBy: George P. Allen and John L. Chambers (1998), 236 p., Published by IPA (Indonesian Petroleum Association).

Origins of the Banda Arcs Collisional Orogen and the Banda Sea Satyana, Awang Harun
Berita Sedimentologi Vol 23, No 1 (2012)
Publisher : Ikatan Ahli Geologi Indonesia

Many of the best examples of young arc-continent collision are found in eastern Indonesia, where the northern margin of Australia has been in collision throughout the Neogene with a succession of island arc systems. The Banda Arc is the youngest of these collision zones and forms the present plate boundary in this region. Behind the Banda Arcs, is the Banda Sea oceanic crust with its debatable origin.

Cover and Front Matter Berita Sedimentologi
Berita Sedimentologi Vol 47, No 2 (2021)
Publisher : Ikatan Ahli Geologi Indonesia

Cover and Front Matter for Berita Sedimentologi Vol. 47 No. 2

The Stratigraphic Distribution of Neogene Dinoflagellate Cysts from A Deep Water Well, Offshore Sabah, Northern Borneo Huibert van den Brink
Berita Sedimentologi Vol 43, No 1 (2019)
Publisher : Ikatan Ahli Geologi Indonesia

A research project was initiated with the objective to establish a dinoflagellate cyst biozonation for deep water wells drilled offshore Sabah and Brunei, Northern Borneo, to complement the biozonations based on nannoplankton, foraminifera and spores-pollen.Analysis of dinoflagellate cysts in ditch cutting samples from deep water well Kebabangan-1, offshore Sabah, resulted in a list of FDO’s, which could be of stratigraphic value: Hystrichokolpoma rigaudiae at 3150’, Operculodinium sp. A at 3840’, Dapsilidinium pastielsii at 4140’ and Lingulodinium pycnospinosum at 4950’ within the Pliocene section; Selenopemphix brevispinosa subsp. conspicua at 5760’ and consistent occurrence of Achomosphaera sp. B at 5760’ within the Upper Miocene section. Samples from appraisal well Kebabangan-2 were examined for calibration.Dinoflagellate cysts have been recovered from mud-rich shelfal topsets and underlying mud-rich slope fan systems in the interval 2610’ to 6495’, while the basal sand-rich base-of-slope fans in the interval 6705’ to 7905’ were barren of palynomorphs. A dinoflagellate biozonation is not yet proposed based on analyses of one well and cursory examination of the appraisal well. The correlation potential of the FDO’s reported for this well needs to be confirmed in follow-up wells along the Northern Borneo offshore.

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Home Page

OAI Link

Editorial Team

Contact

Reviewer

Google Scholar

Contact Name Minarwan

Contact Email minarwanx@gmail.com

Phone +6281908602813

Journal Mail Official bs.fosi@gmail.com

Editorial Address Forum Sedimentologiwan Indonesia (FOSI) Komisi Sedimentologi Ikatan Ahli Geologi Indonesia (IAGI) Jl. Ciledug Raya Kav. 109 Cipulir, Kebayoran Lama, Jakarta Selatan, Indonesia

Location Kota adm. jakarta selatan, Dki jakarta INDONESIA

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Contact Name
Minarwan

Contact Email
minarwanx@gmail.com

Phone
+6281908602813

Journal Mail Official
bs.fosi@gmail.com

Editorial Address
Forum Sedimentologiwan Indonesia (FOSI) Komisi Sedimentologi Ikatan Ahli Geologi Indonesia (IAGI) Jl. Ciledug Raya Kav. 109 Cipulir, Kebayoran Lama, Jakarta Selatan, Indonesia

Location
Kota adm. jakarta selatan,

Dki jakarta

INDONESIA